GCD of 20, 563, 387, 579 Calculator

Given Input numbers are 20, 563, 387, 579

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 563

List of positive integer divisors of 563 that divides 563 without a remainder.

1, 563

Divisors of 387

List of positive integer divisors of 387 that divides 387 without a remainder.

1, 3, 9, 43, 129, 387

Divisors of 579

List of positive integer divisors of 579 that divides 579 without a remainder.

1, 3, 193, 579

Greatest Common Divisior

We found the divisors of 20, 563, 387, 579 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 20, 563, 387, 579 is 1.

Therefore, GCD of numbers 20, 563, 387, 579 is 1

Given Input Data is 20, 563, 387, 579

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 563 is 563

Prime Factorization of 387 is 3 x 3 x 43

Prime Factorization of 579 is 3 x 193

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(20, 563) = 11260

GCD(20, 563) = ( 20 x 563 ) / 11260

GCD(20, 563) = 11260 / 11260

GCD(20, 563) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 387

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 387) = 387

GCD(1, 387) = ( 1 x 387 ) / 387

GCD(1, 387) = 387 / 387

GCD(1, 387) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 579

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 579) = 579

GCD(1, 579) = ( 1 x 579 ) / 579

GCD(1, 579) = 579 / 579

GCD(1, 579) = 1

GCD of 20, 563, 387, 579 is 1

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1. What is the GCD of 20, 563, 387, 579?

GCD of 20, 563, 387, 579 is 1

2. Where do I get the detailed procedure to find GCD of 20, 563, 387, 579?

You can find a detailed procedure to find GCD of 20, 563, 387, 579 on our page.

3. How to find GCD of 20, 563, 387, 579 on a calculator?

You can find the GCD of 20, 563, 387, 579 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.